You see I said intitally that the PSU you chose was fine because it's pretty efficient meaning that even if your system drew, lets say, 400W MAX that would mean the PSU itself would draw about 480W from the mains. The only way this PSU will draw 1100W from the mains is if your internals draw 880W. Maybe an OC'd SkullTrail set up with multi SLI.
Thats the beauty of these switching PSU's and the 80W wasted power is in the form of heat that the PSU generates.
The only negative about the PSU you have chosen is maybe it's efficiency and it's price....